Systematics and evolution of the needle grasses (Poaceae: Pooideae: Stipeae) based on analysis of multiple chloroplast loci, ITS, and lemma micromorphology

27 p.

Detalhes bibliográficos
Autores: Romaschenko, Kostyantyn, Peterson, Paul M., Soreng, Robert J., Garcia-Jacas, Núria, Futorna, Oksana, Susanna de la Serna, Alfonso
Formato: artículo
Fecha de publicación:2012
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/72333
Acesso em linha:http://hdl.handle.net/10261/72333
Access Level:acceso abierto
Palavra-chave:Biogeography
Evolution
Grasses
Lemma micromorphology
Molecular systematics
Phylogeny
Plastid DNA sequences
Stipeae
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spelling Systematics and evolution of the needle grasses (Poaceae: Pooideae: Stipeae) based on analysis of multiple chloroplast loci, ITS, and lemma micromorphologyRomaschenko, KostyantynPeterson, Paul M.Soreng, Robert J.Garcia-Jacas, NúriaFutorna, OksanaSusanna de la Serna, AlfonsoBiogeographyEvolutionGrassesLemma micromorphologyMolecular systematicsPhylogenyPlastid DNA sequencesStipeae27 p.We conducted a molecular phylogenetic study of the tribe Stipeae using nine plastid DNA sequences (trnK-matK, matK, trnH-psbA, trnL-F, rps3, ndhF, rpl32-trnL, rps16-trnK, rps16 intron), the nuclear ITS DNA regions, and micromorphological characters from the lemma surface. Our large original dataset includes 156 accessions representing 139 species of Stipeae representing all genera currently placed in the tribe. The maximum likelihood and Bayesian analyses of DNA sequences provide strong support for the monophyly of Stipeae; including, in phylogenetic order, Macrochloa as remote sister lineage to all other Stipeae, then a primary stepwise divergence of three deep lineages with a saw-like (SL) lemma epidermal pattern (a plesiomorphic state). The next split is between a lineage (SL1) which bifurcates into separate Eurasian and American clades, and a lineage of three parts; a small Patis (SL2) clade, as sister to Piptatherum s.str. (SL3), and the achnatheroid clade (AC). The AC exhibits a maize-like lemma epidermal pattern throughout. AC consists of a core clade of Austral-Eurasian distribution and a “major American clade” of North and South American distribution. The base chromosome number for Stipeae is somewhat ambiguous but based on our survey it seems most likely to be x = 11 or 12. Our phylogenetic hypothesis supports the recognition of the following genera and groups (listed by region): Eurasia—Achnatherum, “Miliacea group”, “Neotrinia” (monotypic), Orthoraphium (monotypic), Patis (also 1 from North America), Piptatherum s.str., Psammochloa (monotypic), Ptilagrostis, Stipa, “Timouria group”, and Trikeraia; Mediterranean—Ampelodesmos (monotypic), Celtica (monotypic), Macrochloa (monotypic), and “Stipella-Inaequiglumes group”; Australasia —Anemanthele (monotypic), and Austrostipa; North America (NA)—“Eriocoma group”, Hesperostipa, Oryzopsis (monotypic), Piptatheropsis, “Pseudoeriocoma group”, and “Stillmania” (monotypic); South America—Aciachne, Amelichloa (also NA), Anatherostipa (s.str.), Jarava (polyphyletic), Lorenzochloa, Nassella (also NA), Ortachne, Pappostipa (also NA), and Piptochaetium (also NA). Monophyly of Phaenospermateae including Duthieinae is demonstrated, and its inclusion within or treatment as sister to Stipeae is rejected.Peer reviewedInternational Association for Plant Taxonomy201320132012info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/72333reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://www.ingentaconnect.com/content/iapt/tax/2012/00000061/00000001/art00002info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/723332026-05-22T06:33:51Z
dc.title.none.fl_str_mv Systematics and evolution of the needle grasses (Poaceae: Pooideae: Stipeae) based on analysis of multiple chloroplast loci, ITS, and lemma micromorphology
title Systematics and evolution of the needle grasses (Poaceae: Pooideae: Stipeae) based on analysis of multiple chloroplast loci, ITS, and lemma micromorphology
spellingShingle Systematics and evolution of the needle grasses (Poaceae: Pooideae: Stipeae) based on analysis of multiple chloroplast loci, ITS, and lemma micromorphology
Romaschenko, Kostyantyn
Biogeography
Evolution
Grasses
Lemma micromorphology
Molecular systematics
Phylogeny
Plastid DNA sequences
Stipeae
title_short Systematics and evolution of the needle grasses (Poaceae: Pooideae: Stipeae) based on analysis of multiple chloroplast loci, ITS, and lemma micromorphology
title_full Systematics and evolution of the needle grasses (Poaceae: Pooideae: Stipeae) based on analysis of multiple chloroplast loci, ITS, and lemma micromorphology
title_fullStr Systematics and evolution of the needle grasses (Poaceae: Pooideae: Stipeae) based on analysis of multiple chloroplast loci, ITS, and lemma micromorphology
title_full_unstemmed Systematics and evolution of the needle grasses (Poaceae: Pooideae: Stipeae) based on analysis of multiple chloroplast loci, ITS, and lemma micromorphology
title_sort Systematics and evolution of the needle grasses (Poaceae: Pooideae: Stipeae) based on analysis of multiple chloroplast loci, ITS, and lemma micromorphology
dc.creator.none.fl_str_mv Romaschenko, Kostyantyn
Peterson, Paul M.
Soreng, Robert J.
Garcia-Jacas, Núria
Futorna, Oksana
Susanna de la Serna, Alfonso
author Romaschenko, Kostyantyn
author_facet Romaschenko, Kostyantyn
Peterson, Paul M.
Soreng, Robert J.
Garcia-Jacas, Núria
Futorna, Oksana
Susanna de la Serna, Alfonso
author_role author
author2 Peterson, Paul M.
Soreng, Robert J.
Garcia-Jacas, Núria
Futorna, Oksana
Susanna de la Serna, Alfonso
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Biogeography
Evolution
Grasses
Lemma micromorphology
Molecular systematics
Phylogeny
Plastid DNA sequences
Stipeae
topic Biogeography
Evolution
Grasses
Lemma micromorphology
Molecular systematics
Phylogeny
Plastid DNA sequences
Stipeae
description 27 p.
publishDate 2012
dc.date.none.fl_str_mv 2012
2013
2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/72333
url http://hdl.handle.net/10261/72333
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://www.ingentaconnect.com/content/iapt/tax/2012/00000061/00000001/art00002
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv International Association for Plant Taxonomy
publisher.none.fl_str_mv International Association for Plant Taxonomy
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869422797877411840
score 15,198674

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